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Coolant Expansion Tank - how to remove?

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Old 01-10-2019, 08:06 AM
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I have Jaguar 2000 Jaguar S-Type 2000 4.0.

I found a big leak today under the driver side, the coolant holding tank is on the driver side, I was able to see the leak is coming from somewhere under the tank. I have tried taking the holding tank off but I can't get to the lower hose. What do I do?

Please advise.
 

Last edited by GGG; 01-10-2019 at 08:15 AM.
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Old 01-10-2019, 08:23 AM
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A picture may help with the hose connections .......




Graham
 
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Old 01-10-2019, 10:27 AM
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Originally Posted by Open View Post
I have tried taking the holding tank off but I can't get to the lower hose.
There's an FAQ here, but unfortunately the pics are gone:

https://www.jaguarforums.com/forum/s...ank-faq-46238/


Not mentioned in the FAQ, but the secret to that lower hose is to disconnect the other end and then remove the hose and tank as a unit. Then you can separate them off the vehicle. To fix that loose connection, unfortunately you'd have to remove the tank. I don't think you can access it while installed.

Also, make sure the tank itself is not leaking. It's very possible the tank is cracked and the coolant is running down the outside, but making it look like the connection is leaking.
 
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Old 01-10-2019, 10:44 AM
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To remove the expansion tank requires removing the wiper arms, windscreen cowl and reinforcement bar first.

Remove the lower hose at the heater pipe by sliding the constant tension clamp down the hose and then use a hose tool or pliers to loosen the hose from the pipe. The lower hose is then removed along with the expansion tank.

Replace the expansion tank as they are know failure points.
 
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Old 01-10-2019, 04:15 PM
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https://www.jaguarforums.com/forum/s...n-tank-205512/

Explains here.

The expansion tank bottom hose has a wire spring clip which you have to carefully slide horizontally towards the centre line of the car.
DO NOT LOSE THE CLIP.
Once the clip is off, you grip the hose connector by hand and pull. Any coolant still in the tank will go everywhere.
So cover up, or have some other way of fully draining the tank.
The level sensor plug is the usual grip and pull, there is only one tag on the plug to release.
The sensor itself can be removed complete with the electrical plug still attached by quite simply rotating the plastic angle shaped holder a quarter
turn either clockwise or anti-clockwise and then pull it out towards the back of the engine bay.
 

Last edited by Busa; 01-10-2019 at 04:24 PM.
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